$80 for your ~1,000 stone is way too much. Unless you're a hobbyist sharpener and/or knife collector, you just won't get the difference. The Chosera is a more convenient stone than the Bester or Sigma Power but no better.
The Gesshin is a different beast, and unless pulling that first wire quickly is not a high priority, not a great choice to occupy the "first sharpening stone" niche. By and large if you want to make a fast 2000 cut anywhere near as fast as a fast 1000, you need to (a) apply a lot of pressure, and (b) understand "mud" and how its breakdown effects speed and polish. I've seen this scenario play out with other "flavor of the month" 2000s, and I think it's a good idea to start a little more standard.
If you're going to stop polishing at the medium/fine border -- it's hard to beat the Takenoko. Your ultimate kit might be: Beston 400, Bester 1200, Takenoko 6000.
If you're just looking for an efficient, "fine enough" edge -- you can stop at the Suehiro Rika (a really easy to use, versatile, stone). Your kit would be: 400, 1200, Suehiro Rika 5000. CKtG sells this kit, Beston, Bester, Suehrio, for $135; and that's a really good way to go.
If you want to polish higher, say to 8000 or 10000, it goes faster and easier to have an intermediate between the ~1000 and the final stone. My kit is Beston 400, Bester 1200, Chosera 3000, and Naniwa SS 8000.
I use but don't recommend the Chosera 3000, and you can take that as a judgment on Choseras in general. They're very good, but don't do a better job than stones which cost less. I don't want to minimize their excellence, but think they're sort of a trap for people who want and are willing to pay for "the best." There is no best. If the extra $35 buys you some peace of minde, it's worth it; but it won't buy you a better stone.
When we talk about very soft stones, we're often talking about Naniwa SS. I've owned and used all of them at one time or another, and like them quite a bit. I used to recommend them as great beginner's stones because of their excellent feedback and bargain basement price for the 10mm versions. But have re-evaluated because part of the feedback includes a tendency to gouge with angle wobbling; they require very careful drying out, and micro-fracture anyway, which means flattening EVERY time. If you play golf, you might think "game improvement", offset hosel, cavity-backs vs blades -- for beginners.
There are other soft stones with excellent feedback which aren't as cranky as the SS. Kings, Nortons, and Suehiros for instance. A few of the Suehiros are very good, but the time for Nortons and Kings, for all their feedback has passed. With a few exceptions, stones in this class are comparatively both too slow, and cut too coarse.
Getting back to the Beston/Bester stones -- they're chief drawback is inconvenience. If you notice your knife is dull in the middle of prep, you can't simply pull out your Bester, then splash and go. They take at least 30 minutes of soak time, and two hours is better. A lot of people leave theirs in the bucket overnight and sharpen early. People who do a lot of sharpening often leave them in the bucket full time. (You can't do that with most stones, btw.) But the need to sharpen is predictable, I don't regard that as much of a problem. True, they are both "hard," and without being unpleasant aren't quite as pleasant to use as some other stones; but again -- that's not much of a drawback.
Maybe we should get back to basics before warming up the credit card.
How do you sharpen? Do you use the "burr method" (pull the burr; chase the burr; deburr if necessary; and repeat for each stone)? Count strokes? Something else?
How do you deburr?
Do you use a steel? How often? How fine?
Do you think you'll ultimately want a four stone kit (fine polish), or a three stone kit (working finish)?
Do you have a lot of special purpose knives? For instance, butchering knives? Do you do a lot of meat work? Fish work?
BDL